APA引文

United States. Superintendent of Documents. (1994). Environmental protection. U.S. G.P.O., Supt. of Docs.

Chicago Style (17th ed.) Citation

United States. Superintendent of Documents. Environmental Protection. Washington, DC: U.S. G.P.O., Supt. of Docs, 1994.

MLA引文

United States. Superintendent of Documents. Environmental Protection. U.S. G.P.O., Supt. of Docs, 1994.

警告：這些引文格式不一定是100％准確.